Nutrient limitations, particularly low OM, N deficiency

The gap

Evidence profile

Sourced from the abstract and recommendations and stated research gap and future-work section of the source papers, classified as general, spanning 6 journals.

Supporting evidence — 7 representative gaps

• Zn Deficiency-Cd Contaminated Soils: The Effect of Zn Fertilization on the Uptake of Cd and Some Nutrient Elements by Wheat (Triticum aestivum L.) Plants (2026) · Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi · doi

  As a result of this study, it was observed that Zn-fertilization in a Zn-deficient, Cd-contaminated soil was insufficient to alleviate Cd uptake in wheat plants, and it can be concluded that the relationship between Zn and Cd and other elements is controversial and may vary depending on the dose, soil properties, the part of the plant, and the growth period.

  generalabstractevidence 5/5
  Keywords: soil result observed fertilization deficient contaminated insufficient alleviate uptake wheat plants concluded relationship elements controversial
• Assessing Zinc Requirement of Newly Developed Wheat Variety NWB-50 (2026) · Journal of Applied Research in Plant Sciences · doi

  Our findings may not be directly applicable to all agro-ecological regions. We recommend that future research should include multi-location and multiseason trials across diverse soil types and climatic conditions to validate and refine the zinc fertilizer recommendation for the newly developed wheat variety NWB-50. There is also a need to investigate the residual effect of zinc on the next crop, critical soil Zn value for NWB-50, and cost-benefit analysis for different levels of Zn application under different environmental conditions. Testing of zinc coated urea or Zn+ nitrogen fertilization may also improve nutrient use efficiency and lesser production expenses.

  generalrecommendationsevidence 5/5
  Keywords: zinc multi soil conditions different directly applicable agro ecological regions recommend future include location season
• Comparative responses of contrasting monsoon rice varieties to zinc feeding approaches under rainfed conditions (2026) · Trends in Current Biology · doi

  There is a need to investigate the responses of different rice varieties to various zinc feeding approaches. There is a lack of information on the most effective zinc application strategies for improving rice yield and zinc content.

  generalstated research gapevidence 5/5
  Keywords: there need investigate responses different rice varieties various
• Comparative effects of zinc oxide nanoparticles and conventional zinc on growth and yield attributes of cowpea (2026) · Plant Science Today · doi

  Conventional zinc fertilisers have limited efficiency due to fixation in soil and low nutrient use efficiency. There is a need for more efficient fertilisation strategies to improve crop productivity.

  generalstated research gapevidence 5/5
  Keywords: conventional zinc fertilisers have limited efficiency due fixation
• Yield performance and seed quality of wheat under different levels of foliar zinc application at vegetative and reproductive stages (2026) · Acta Biologica Szegediensis · doi

  There is a need to evaluate the interactive effects of wheat varieties and foliar zinc application on growth and yield performances. The effect of zinc application on seed quality and grain zinc concentration needs to be determined.

  generalstated research gapevidence 5/5
  Keywords: there need evaluate interactive effects wheat varieties foliar
• Soil Nutrient Status and Fertility Assessment of Rice Cultivation Areas in Keşan, Türkiye (2026) · DOAJ (DOAJ: Directory of Open Access Journals) · doi

  Nutrient limitations, particularly low OM, N deficiency, and reduced Mn-Zn availability, necessitate improved fertilization practices and targeted soil management.

  generalstated research gapevidence 5/5
  Keywords: nutrient limitations particularly low deficiency reduced mn-zn availability
• Comparative responses of contrasting monsoon rice varieties to zinc feeding approaches under rainfed conditions (2026) · Trends in Current Biology · doi

  Further studies are needed to investigate the effects of zinc application on other rice varieties. Research is needed to develop more effective zinc application strategies for rice cultivation. Studies are required to explore the potential of breeding programs for developing zinc-efficient rice varieties.

  generalfuture-work sectionevidence 4/5
  Keywords: further studies needed investigate effects zinc application other

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